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%
% MIT License
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% Copyright (c) 2016 Microsoft
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% Permission is hereby granted, free of charge, to any person obtaining a copy
% of this software and associated documentation files (the "Software"), to deal
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% furnished to do so, subject to the following conditions:
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function indices = pbchi(enb)
    crs_k = mod(enb.NCellID, 3); % CRS starting index
    sym23 = enb.NDLRB * 6 - 36 + (0:71);
    sym01 = sym23(mod(sym23, 3) ~= crs_k);
    nSC = enb.NDLRB * 12;
    indices = [sym01+7*nSC sym01+8*nSC sym23+9*nSC sym23+10*nSC]' + 1;
end
